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Description

LinkAce is a self-hosted archive to collect website links. Prior to 2.5.6, the setup database configuration flow on uninitialized LinkAce instances accepts attacker-controlled database credential fields and writes them back into .env without escaping. A remote attacker who can reach the setup endpoints and supply a database they control can inject mail configuration variables and achieve command execution when the application later sends mail. This vulnerability is fixed in 2.5.6.

PUBLISHED Reserved 2026-05-11 | Published 2026-05-28 | Updated 2026-06-01 | Assigner GitHub_M




HIGH: 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Product status

< 2.5.6
affected

References

github.com/...inkAce/security/advisories/GHSA-37m5-936h-w455 exploit

github.com/...inkAce/security/advisories/GHSA-37m5-936h-w455

cve.org (CVE-2026-45344)

nvd.nist.gov (CVE-2026-45344)

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